[AZ-Observing] Re: Double stars for seeing test
- From: "Steve Coe" <stevecoe@xxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Tue, 24 Jun 2003 19:53:31 -0700
Brian, et al;
Just wondering on this subject. If I counted the number of stars in a
globular cluster that were resolved at the same magnification from night to
night, would that also be a good test of seeing? Any of the big Messier's
might be too much to do consistently, but how about M 71 or M 56, where the
Nexstar 11 would resolve 5 stars or so in poor seeing and 10 to 20 on better
nights. Would variable stars in the clusters make that method invalid?
Steve Coe
Author "Deep Sky Observing--The Astronomical Tourist"
Saguaro Astronomy Club website
www.saguaroastro.org
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